1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9f6a34c19db8869e7d0cb0f22294508ae500e3c9fe6418d01e7b6bfb15499c3. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cdfa01e-21bb-4825-970e-66daeb12845f.json and https://artists.proofprofile.net/proofs/artist/1cdfa01e-21bb-4825-970e-66daeb12845f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sober Soft Pink Noises for Well Sleep Baby
Hair Dryers for Infants Fast Falling Asleep Loop
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa057cd612bf808d31a233ee7d0534a5c4a0cd50badf41cdd74764e6d3f7c0dd9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLS102030521.
45 Constant Hair Dryers Background Noises
! ! ! ! Static Background Noise FX ! ! ! !
! ! ! ! ASMR & Background Noise FX ! ! ! !
! ! ! ! White Noise in the Background ! ! ! !
! ! ! ! White Noise Background Sound ! ! ! !
! ! ! ! White Noise & Background FX ! ! ! !
Appliances and other Household Ambiences, Vol 7
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7555fc40a67c8a86718a4b32bac40ca99804d67a3426e7d89b11686c90b515d3. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL52J2209055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1f33e13c38b654f5ee087596cb9a7a85858318f83fc588f043763d7da952976. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL52J2209051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c8e0f419356d44ebad6adceb1b70fb50ee97853088af4a52d04e90db9374b58. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PL52J2209061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x946e52d45da488d50ad91c3f67871e708a0517f80eade2b9e28fd79c786c76f1. Chain 2 (Bitcoin): anchored in block 958878 (2026-07-20T15:18:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUE12401306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e6ad82cd959032b079fc82b70499ef5e835abdd44f658c50105b3c9a14b72ec. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868157.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5909d47fa50478e5673b0555e5f24241138267d3ecd3ce1e808a2d1205373441. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb15d056ba29226e34e221aa5d8a6bcd7aa7c35c5bf30f9e6ea343c16149b9a3. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07c4ee3e2bd7749962483eaae07edbe051d20238990fc0f41ae5e41681c10751. Chain 2 (Bitcoin): anchored in block 958208 (2026-07-15T22:40:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x307773d7ee282c423ea21de94b267e6ae994a65d336ef2cfe058a5ab0fa1556d. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T11:47:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868222.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67ebaa5747e92cce47f1e1aba698a06ea7d7da8146b4d42106e655229f09dbe0. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240490e6976d8fefbe825e301eaf64bb13310da1ab3820f52e4050c98d928429. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868183.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd05f9e35b0f9f6fc9488d9dc497d902f1a6a727256e2ada304d2d9c45c1ac3e7. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x102f7af78cc6d7819063f4e2dd9b557c261e8b778b1b9cf382996604bdcf9433. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x929a9d60271f1b1d14c1f64d4d0313e9654b469915cd8a3cdf28fd07141beab6. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBPS83868161.